package com.ybkj.daijia.template.directive;

import com.ybkj.daijia.template.directive.OverrideDirective.TemplateDirectiveBodyOverrideWraper;
import freemarker.core.Environment;
import freemarker.template.TemplateDirectiveBody;
import freemarker.template.TemplateDirectiveModel;
import freemarker.template.TemplateException;
import freemarker.template.TemplateModel;
import java.io.IOException;
import java.util.Map;

public class SuperDirective implements TemplateDirectiveModel {

    public final static String DIRECTIVE_NAME = "super";

    @SuppressWarnings("rawtypes")
    public void execute(Environment env,
        Map params, TemplateModel[] loopVars,
        TemplateDirectiveBody body) throws TemplateException, IOException {

        TemplateDirectiveBodyOverrideWraper current = (TemplateDirectiveBodyOverrideWraper) env
            .getVariable(DirectiveUtils.OVERRIDE_CURRENT_NODE);
        if (current == null) {
            throw new TemplateException("<@super/> direction must be child of override", env);
        }
        TemplateDirectiveBody parent = current.parentBody;
        if (parent == null) {
            throw new TemplateException("not found parent for <@super/>", env);
        }
        parent.render(env.getOut());

    }

}